GIS, GPS and Mapping Links

GIS Tips and Techniques

• I have just finished reading through the Kindle Edition of Exploring AutoCAD Map 3D 2013, written by Sham Tickoo and published by CADCIM Technologies. I am now on my second read through it, wherein I am doing the tutorials and exercises. Although their webpage for this book and its resources does not list any errata, there are a number of them that should be noted. I will create my own errata for this book, to be linked from here, shortly.

• When mosaicking DEMs, sometimes gaps of "nodata" result. Here is a technique that I employed to address this: Mosaicked DEM Gap Removal.

• My GIS and GPS Weblog - something new, trying my hand at setting up a blog.

GIS, GPS and Mapping Links

• Quantum GIS (QGIS) an open sources GIS application that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports vector, raster, and database formats.

• The Norman B. Leventhal Map Center at the Boston Public Library

• The Harvard Geospatial Library

• The Internet Archive - Only a few USGS quad maps are online, but the are worth the visit.

• National Geospatial-Intelligence Agency Names Server (GNS)

• National Geospatial-Intelligence Agency Name Files (GNS) - Non-USA country gazetteer data sets for GIS

• NH GRANIT Web Site
  Site that provides access to New Hampshire's statewide Geographic Information System (GIS)
  http://www.granit.sr.unh.edu/

• Vermont Center for Geographic Information

• ESRI ArcExplorer 9.2 (JAVA)
  Free GIS Viewer software from ESRI.http://www.esri.com/software/arcexplorer/index.html

• Global Visualization Viewer - Orthorectified Landsat data for download
• Earth Explorer Viewer - Orthorectified Landsat data for download
• Vermont Center for Geographic Information
• Vermont Department of Environmental Conservation Maps, Mapping Programs and GIS Information
• Clark University Map Library Geography and GIS Links
• GIS User - Sponsored by Autodesk
• GIS monitor
• Pennsylvania Spatial Data Access - The Pennsylvania Geospatial Data Clearinghouse
• Global Mapper Software LLC - Olathe, Kansas-based software developer which designs, develops, and distributes the Global Mapper software package.
• http://www.doylesdartden.com/gis/howtousedrgs.htm
• OziExplorer
• GIS Manifold
• Mass GIS - the State of Massachusetts GIS Data Online
• Maptech's Mapserver
• Real-time Revolving 3-D Image of the Earth
• PalGar - Palm-based GPS Data Manager.
• Rhode Island USGenWeb Project - Maps - Many old maps of Rhode Island are online here, including D.G. Beers & Co. maps of 1870.
• New York State GIS Clearinghouse
• Sanborn Fire Insurance Maps
• Perry-Castañeda Library Map Collection
• University of Rhode Island GIS Webpage - with links for the state GIS datasets and the MIT/URI digital orthophoto webserver. Very cool place to find GIS stuff of Rhode Island.
• Railroad Maps Collection of the U.S. Library of Congress - a large collection of hundreds of North American Railroad Maps, free for downloading. You will need to also download the MrSID Viewer (Mac/Win/Unix) from LizardTech. They have Photoshop plug-ins and create World Files for Geo Referencing. It appears that this website is not available on weekends.
• Navtech GPS Supply
• GIS Starting the Hunt - A nice website with tons of links to current sources of GIS data, hosted by the University of Arkansas.